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package C4::Search;
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
use Koha;
no warnings qw(uninitialized);
require Exporter;
use C4::Context;
use C4::Biblio; # GetMarcFromKohaField, GetBiblioData
use C4::Koha;
use Lingua::Stem;
use C4::Search::PazPar2;
use XML::Simple;
use C4::Dates qw(format_date);
use C4::XSLT;
use C4::Branch;
use URI::Escape;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $DEBUG);
# set the version for version checking
BEGIN {
$VERSION = 3.01;
$DEBUG = ($ENV{DEBUG}) ? 1 : 0;
}
=head1 NAME
C4::Search - Functions for searching the Koha catalog.
=head1 SYNOPSIS
See opac/opac-search.pl or catalogue/search.pl for example of usage
=head1 DESCRIPTION
This module provides searching functions for Koha's bibliographic databases
=head1 FUNCTIONS
=cut
@ISA = qw(Exporter);
@EXPORT = qw(
&FindDuplicate
&SimpleSearch
&searchResults
&getRecords
&buildQuery
&NZgetRecords
);
# make all your functions, whether exported or not;
=head2 FindDuplicate
($biblionumber,$biblionumber,$title) = FindDuplicate($record);
This function attempts to find duplicate records using a hard-coded, fairly simplistic algorithm
=cut
sub FindDuplicate {
my ($record) = @_;
my $dbh = C4::Context->dbh;
my $result = TransformMarcToKoha( $dbh, $record, '' );
my $sth;
my $query;
my $search;
my $type;
my ( $biblionumber, $title );
# search duplicate on ISBN, easy and fast..
# ... normalize first
if ( $result->{isbn} ) {
$result->{isbn} =~ s/\(.*$//;
$result->{isbn} =~ s/\s+$//;
$query = "isbn=$result->{isbn}";
}
else {
$result->{title} =~ s /\\//g;
$result->{title} =~ s /\"//g;
$result->{title} =~ s /\(//g;
$result->{title} =~ s /\)//g;
# FIXME: instead of removing operators, could just do
# quotes around the value
$result->{title} =~ s/(and|or|not)//g;
$query = "ti,ext=$result->{title}";
$query .= " and itemtype=$result->{itemtype}"
if ( $result->{itemtype} );
if ( $result->{author} ) {
$result->{author} =~ s /\\//g;
$result->{author} =~ s /\"//g;
$result->{author} =~ s /\(//g;
$result->{author} =~ s /\)//g;
# remove valid operators
$result->{author} =~ s/(and|or|not)//g;
$query .= " and au,ext=$result->{author}";
}
}
# FIXME: add error handling
my ( $error, $searchresults ) = SimpleSearch($query); # FIXME :: hardcoded !
my @results;
foreach my $possible_duplicate_record (@$searchresults) {
my $marcrecord =
MARC::Record->new_from_xml($possible_duplicate_record);
my $result = TransformMarcToKoha( $dbh, $marcrecord, '' );
# FIXME :: why 2 $biblionumber ?
if ($result) {
push @results, $result->{'biblionumber'};
push @results, $result->{'title'};
}
}
return @results;
}
=head2 SimpleSearch
( $error, $results, $total_hits ) = SimpleSearch( $query, $offset, $max_results, [@servers] );
This function provides a simple search API on the bibliographic catalog
=over 2
=item C<input arg:>
* $query can be a simple keyword or a complete CCL query
* @servers is optional. Defaults to biblioserver as found in koha-conf.xml
* $offset - If present, represents the number of records at the beggining to omit. Defaults to 0
* $max_results - if present, determines the maximum number of records to fetch. undef is All. defaults to undef.
=item C<Output:>
* $error is a empty unless an error is detected
* \@results is an array of records.
* $total_hits is the number of hits that would have been returned with no limit
=item C<usage in the script:>
=back
my ( $error, $marcresults, $total_hits ) = SimpleSearch($query);
if (defined $error) {
$template->param(query_error => $error);
warn "error: ".$error;
output_html_with_http_headers $input, $cookie, $template->output;
exit;
}
my $hits = scalar @$marcresults;
my @results;
for my $i (0..$hits) {
my %resultsloop;
my $marcrecord = MARC::File::XML::decode($marcresults->[$i], 'UTF-8');
my $biblio = TransformMarcToKoha(C4::Context->dbh,$marcrecord,'');
#build the hash for the template.
$resultsloop{title} = $biblio->{'title'};
$resultsloop{subtitle} = $biblio->{'subtitle'};
$resultsloop{biblionumber} = $biblio->{'biblionumber'};
$resultsloop{author} = $biblio->{'author'};
$resultsloop{publishercode} = $biblio->{'publishercode'};
$resultsloop{publicationyear} = $biblio->{'publicationyear'};
push @results, \%resultsloop;
}
$template->param(result=>\@results);
=cut
sub SimpleSearch {
my ( $query, $offset, $max_results, $servers ) = @_;
if ( C4::Context->preference('NoZebra') ) {
my $result = NZorder( NZanalyse($query) )->{'biblioserver'};
my $search_result =
( $result->{hits}
&& $result->{hits} > 0 ? $result->{'RECORDS'} : [] );
return ( undef, $search_result, scalar($result->{hits}) );
}
else {
# FIXME hardcoded value. See catalog/search.pl & opac-search.pl too.
my @servers = defined ( $servers ) ? @$servers : ( "biblioserver" );
my @results;
my @zoom_queries;
my @tmpresults;
my @zconns;
my $total_hits;
return ( "No query entered", undef, undef ) unless $query;
# Initialize & Search Zebra
for ( my $i = 0 ; $i < @servers ; $i++ ) {
eval {
$zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
$zoom_queries[$i] = new ZOOM::Query::CCL2RPN( $query, $zconns[$i]);
$tmpresults[$i] = $zconns[$i]->search( $zoom_queries[$i] );
# error handling
my $error =
$zconns[$i]->errmsg() . " ("
. $zconns[$i]->errcode() . ") "
. $zconns[$i]->addinfo() . " "
. $zconns[$i]->diagset();
return ( $error, undef, undef ) if $zconns[$i]->errcode();
};
if ($@) {
# caught a ZOOM::Exception
my $error =
$@->message() . " ("
. $@->code() . ") "
. $@->addinfo() . " "
. $@->diagset();
warn $error;
return ( $error, undef, undef );
}
}
while ( ( my $i = ZOOM::event( \@zconns ) ) != 0 ) {
my $event = $zconns[ $i - 1 ]->last_event();
if ( $event == ZOOM::Event::ZEND ) {
my $first_record = defined( $offset ) ? $offset+1 : 1;
my $hits = $tmpresults[ $i - 1 ]->size();
$total_hits += $hits;
my $last_record = $hits;
if ( defined $max_results && $offset + $max_results < $hits ) {
$last_record = $offset + $max_results;
}
for my $j ( $first_record..$last_record ) {
my $record = $tmpresults[ $i - 1 ]->record( $j-1 )->raw(); # 0 indexed
push @results, $record;
}
}
}
foreach my $result (@tmpresults) {
$result->destroy();
}
foreach my $zoom_query (@zoom_queries) {
$zoom_query->destroy();
}
return ( undef, \@results, $total_hits );
}
}
sub getFacets {
my $facets;
if ( C4::Context->preference("marcflavour") eq "UNIMARC" ) {
$facets = [
{
link_value => 'su-to',
label_value => 'Topics',
tags =>
[ '600', '601', '602', '603', '604', '605', '606', '610' ],
subfield => 'a',
},
{
link_value => 'su-geo',
label_value => 'Places',
tags => ['651'],
subfield => 'a',
},
{
link_value => 'su-ut',
label_value => 'Titles',
tags => [ '500', '501', '502', '503', '504', ],
subfield => 'a',
},
{
link_value => 'au',
label_value => 'Authors',
tags => [ '700', '701', '702', ],
subfield => 'a',
},
{
link_value => 'se',
label_value => 'Series',
tags => ['225'],
subfield => 'a',
},
];
my $library_facet;
$library_facet = {
link_value => 'branch',
label_value => 'Libraries',
tags => [ '995', ],
subfield => 'b',
expanded => '1',
};
push @$facets, $library_facet unless C4::Context->preference("singleBranchMode");
}
else {
$facets = [
{
link_value => 'su-to',
label_value => 'Topics',
tags => ['650'],
subfield => 'a',
},
{
link_value => 'fixed',
label_value => 'Formats',
tags => ['007','008'],
span => ['l-format:007:0:1','ctype:008:24:27','e-format:008:26:26','ff8-23:008:23:23'],
},
{
link_value => 'su-geo',
label_value => 'Places',
tags => ['651'],
subfield => 'a',
},
{
link_value => 'su-ut',
label_value => 'Titles',
tags => ['630'],
subfield => 'a',
},
{
link_value => 'au',
label_value => 'Authors',
tags => [ '100', '110', '700', ],
subfield => 'a',
},
{
link_value => 'se',
label_value => 'Series',
tags => [ '440', '490', ],
subfield => 'a',
},
];
my $library_facet;
$library_facet = {
link_value => 'branch',
label_value => 'Libraries',
tags => [ '952', ],
subfield => 'b',
expanded => '1',
};
push @$facets, $library_facet unless C4::Context->preference("singleBranchMode");
}
return $facets;
}
=head2 getRecords
( undef, $results_hashref, \@facets_loop ) = getRecords (
$koha_query, $simple_query, $sort_by_ref, $servers_ref,
$results_per_page, $offset, $expanded_facet, $branches,
$query_type, $scan
);
The all singing, all dancing, multi-server, asynchronous, scanning,
searching, record nabbing, facet-building
See verbse embedded documentation.
=cut
sub getRecords {
my (
$koha_query, $simple_query, $sort_by_ref, $servers_ref,
$results_per_page, $offset, $expanded_facet, $branches,
$query_type, $scan
) = @_;
my @servers = @$servers_ref;
my @sort_by = @$sort_by_ref;
# Initialize variables for the ZOOM connection and results object
my $zconn;
my @zconns;
my @results;
my $results_hashref = ();
# Initialize variables for the faceted results objects
my $facets_counter = ();
my $facets_info = ();
my $facets = getFacets();
my @facets_loop; # stores the ref to array of hashes for template facets loop
### LOOP THROUGH THE SERVERS
for ( my $i = 0 ; $i < @servers ; $i++ ) {
$zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
###This is to address extraneous "and" operators generated in the zebra query
$koha_query =~ s{(\band\b\s+)(?=\1)}{}g;
# perform the search, create the results objects
# if this is a local search, use the $koha-query, if it's a federated one, use the federated-query
my $query_to_use = ($servers[$i] =~ /biblioserver/) ? $koha_query : $simple_query;
#$query_to_use = $simple_query if $scan;
warn $simple_query if ( $scan and $DEBUG );
# Check if we've got a query_type defined, if so, use it
eval {
if ($query_type) {
if ($query_type =~ /^ccl/) {
$query_to_use =~ s/\:/\=/g; # change : to = last minute (FIXME)
$results[$i] = $zconns[$i]->search(new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
} elsif ($query_type =~ /^cql/) {
$results[$i] = $zconns[$i]->search(new ZOOM::Query::CQL($query_to_use, $zconns[$i]));
} elsif ($query_type =~ /^pqf/) {
$results[$i] = $zconns[$i]->search(new ZOOM::Query::PQF($query_to_use, $zconns[$i]));
} else {
warn "Unknown query_type '$query_type'. Results undetermined.";
}
} elsif ($scan) {
$results[$i] = $zconns[$i]->scan( new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
} else {
$results[$i] = $zconns[$i]->search(new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
}
};
if ($@) {
warn "WARNING: query problem with $query_to_use " . $@;
}
# Concatenate the sort_by limits and pass them to the results object
# Note: sort will override rank
my $sort_by;
foreach my $sort (@sort_by) {
if ( $sort eq "author_az" ) {
$sort_by .= "1=1003 <i ";
}
elsif ( $sort eq "author_za" ) {
$sort_by .= "1=1003 >i ";
}
elsif ( $sort eq "popularity_asc" ) {
$sort_by .= "1=9003 <i ";
}
elsif ( $sort eq "popularity_dsc" ) {
$sort_by .= "1=9003 >i ";
}
elsif ( $sort eq "call_number_asc" ) {
$sort_by .= "1=8007 <i ";
}
elsif ( $sort eq "call_number_dsc" ) {
$sort_by .= "1=8007 >i ";
}
elsif ( $sort eq "pubdate_asc" ) {
$sort_by .= "1=31 <i ";
}
elsif ( $sort eq "pubdate_dsc" ) {
$sort_by .= "1=31 >i ";
}
elsif ( $sort eq "acqdate_asc" ) {
$sort_by .= "1=32 <i ";
}
elsif ( $sort eq "acqdate_dsc" ) {
$sort_by .= "1=32 >i ";
}
elsif ( $sort eq "title_az" ) {
$sort_by .= "1=4 <i ";
}
elsif ( $sort eq "title_za" ) {
$sort_by .= "1=4 >i ";
}
else {
warn "Ignoring unrecognized sort '$sort' requested" if $sort_by;
}
}
if ($sort_by) {
if ( $results[$i]->sort( "yaz", $sort_by ) < 0 ) {
warn "WARNING sort $sort_by failed";
}
}
} # finished looping through servers
# The big moment: asynchronously retrieve results from all servers
while ( ( my $i = ZOOM::event( \@zconns ) ) != 0 ) {
my $ev = $zconns[ $i - 1 ]->last_event();
if ( $ev == ZOOM::Event::ZEND ) {
next unless $results[ $i - 1 ];
my $size = $results[ $i - 1 ]->size();
my %format_tie; ##used to verify fixed-field format for facets
if ( $size > 0 ) {
my $results_hash;
# loop through the results
$results_hash->{'hits'} = $size;
my $times;
if ( $offset + $results_per_page <= $size ) {
$times = $offset + $results_per_page;
}
else {
$times = $size;
}
for ( my $j = $offset ; $j < $times ; $j++ ) {
my $records_hash;
my $record;
my $facet_record;
## Check if it's an index scan
if ($scan) {
my ( $term, $occ ) = $results[ $i - 1 ]->term($j);
# here we create a minimal MARC record and hand it off to the
# template just like a normal result ... perhaps not ideal, but
# it works for now
my $tmprecord = MARC::Record->new();
$tmprecord->encoding('UTF-8');
my $tmptitle;
my $tmpauthor;
# the minimal record in author/title (depending on MARC flavour)
if (C4::Context->preference("marcflavour") eq "UNIMARC") {
$tmptitle = MARC::Field->new('200',' ',' ', a => $term, f => $occ);
$tmprecord->append_fields($tmptitle);
} else {
$tmptitle = MARC::Field->new('245',' ',' ', a => $term,);
$tmpauthor = MARC::Field->new('100',' ',' ', a => $occ,);
$tmprecord->append_fields($tmptitle);
$tmprecord->append_fields($tmpauthor);
}
$results_hash->{'RECORDS'}[$j] = $tmprecord->as_xml();
}
# not an index scan
else {
$record = $results[ $i - 1 ]->record($j)->raw();
# warn "RECORD $j:".$record;
$results_hash->{'RECORDS'}[$j] = $record;
# Fill the facets while we're looping, but only for the biblioserver
if($servers[ $i - 1 ] =~ /biblioserver/){
$facet_record = eval { MARC::Record->new_from_xml($record,'UTF-8') };
if($@){
warn "Bad record returned. $@";
next;
}
#warn $servers[$i-1]."\n".$record; #.$facet_record->title();
}
if ($facet_record) {
for ( my $k = 0 ; $k <= @$facets ; $k++ ) {
($facets->[$k]) or next;
my @fields = map {$facet_record->field($_)} @{$facets->[$k]->{'tags'}} ;
for my $field (@fields) {
if ($field->tag gt '099') {
my @subfields = $field->subfields();
for my $subfield (@subfields) {
my ( $code, $data ) = @$subfield;
($code eq $facets->[$k]->{'subfield'}) or next;
$facets_counter->{ $facets->[$k]->{'link_value'} }->{$data}++;
}
} else {
for my $fixed_field (@{$facets->[$k]{'span'}} ){
my ($alt_link_value,$alt_tag,$first, $last) = split(/:/, $fixed_field);
my $data = substr($field->data, $first, $last-$first+1) unless length($field->data) < $first;
$data =~ s{^\+|\s+$|\d{2,}|\|}{}g;
push @{$format_tie{$data}},$alt_link_value,$alt_tag,$data if ($data ne undef && ! exists $format_tie{$data} );
$facets_counter->{$facets->[$k]{'link_value'}}{$data}++ if exists $format_tie{$data};
}
}
}
$facets_info->{ $facets->[$k]->{'link_value'} }->{'label_value'} =
$facets->[$k]->{'label_value'};
$facets_info->{ $facets->[$k]->{'link_value'} }->{'expanded'} =
$facets->[$k]->{'expanded'};
}
}
}
}
$results_hashref->{ $servers[ $i - 1 ] } = $results_hash;
}
# warn "connection ", $i-1, ": $size hits";
# warn $results[$i-1]->record(0)->render() if $size > 0;
# BUILD FACETS
if ( $servers[ $i - 1 ] =~ /biblioserver/ ) {
for my $link_value (
sort { $facets_counter->{$b} <=> $facets_counter->{$a} }
keys %$facets_counter )
{
my $expandable;
my $number_of_facets;
my @this_facets_array;
for my $one_facet (
sort {
$facets_counter->{$link_value}->{$b}
<=> $facets_counter->{$link_value}->{$a}
} keys %{ $facets_counter->{$link_value} }
)
{
$number_of_facets++;
if ( ( $number_of_facets < 6 )
|| ( $expanded_facet eq $link_value )
|| ( $facets_info->{$link_value}->{'expanded'} ) )
{
# Sanitize the link value ), ( will cause errors with CCL,
my $facet_link_value = $one_facet;
$facet_link_value =~ s/(\(|\))/ /g;
# fix the length that will display in the label,
my $facet_label_value = $one_facet;
$facet_label_value =
substr( $one_facet, 0, 20 ) . "..."
unless length($facet_label_value) <= 20;
# if it's a branch, label by the name, not the code,
if ( $link_value =~ /branch/ ) {
$facet_label_value =
$branches->{$one_facet}->{'branchname'};
}
elsif($link_value eq 'fixed'){
my $authval;
if ($format_tie{$facet_link_value}[0] eq 'l-format' && $format_tie{$facet_link_value}[2] eq $facet_link_value){
$authval = GetAuthorisedValue('HINGS_PF', $facet_link_value) ;
}
if ($format_tie{$facet_link_value}[0] eq 'ctype' && $format_tie{$facet_link_value}[2] eq $facet_link_value){
$authval = GetAuthorisedValue('CTYPE', $facet_link_value);
}
if ($format_tie{$facet_link_value}[0] eq 'ff8-23' && $format_tie{$facet_link_value}[2] eq $facet_link_value){
$authval = GetAuthorisedValue('CTYPE', $facet_link_value);
}
if ($format_tie{$facet_link_value}[0] eq 'e-format' && $format_tie{$facet_link_value}[2] eq $facet_link_value){
$authval = GetAuthorisedValue('ETYPE', $facet_link_value) ;
}
$facet_label_value = ($authval) ? $authval->{lib} : undef;
}
# but we're down with the whole label being in the link's title.
push @this_facets_array, {
facet_count => $facets_counter->{$link_value}->{$facet_link_value},
facet_label_value => $facet_label_value,
facet_title_value => $one_facet,
facet_link_value => $facet_link_value,
type_link_value => $link_value eq 'fixed' ? $format_tie{$facet_link_value}[0]: $link_value ,
};
}
}
# handle expanded option
unless ( $facets_info->{$link_value}->{'expanded'} ) {
$expandable = 1
if ( ( $number_of_facets > 6 )
&& ( $expanded_facet ne $link_value ) );
}
push @facets_loop, {
type_link_value => $link_value,
type_id => $link_value . "_id",
"type_label_" . $facets_info->{$link_value}->{'label_value'} => 1,
label => $facets_info->{$link_value}->{'label_value'},
facets => \@this_facets_array,
expandable => $expandable,
expand => $link_value,
offset => $offset,
} unless ( ($facets_info->{$link_value}->{'label_value'} =~ /Libraries/) and (C4::Context->preference('singleBranchMode')) );
}
}
}
}
return ( undef, $results_hashref, \@facets_loop );
}
sub pazGetRecords {
my (
$koha_query, $simple_query, $sort_by_ref, $servers_ref,
$results_per_page, $offset, $expanded_facet, $branches,
$query_type, $scan
) = @_;
my $paz = C4::Search::PazPar2->new(C4::Context->config('pazpar2url'));
$paz->init();
$paz->search($simple_query);
sleep 1; # FIXME: WHY?
# do results
my $results_hashref = {};
my $stats = XMLin($paz->stat);
my $results = XMLin($paz->show($offset, $results_per_page, 'work-title:1'), forcearray => 1);
# for a grouped search result, the number of hits
# is the number of groups returned; 'bib_hits' will have
# the total number of bibs.
$results_hashref->{'biblioserver'}->{'hits'} = $results->{'merged'}->[0];
$results_hashref->{'biblioserver'}->{'bib_hits'} = $stats->{'hits'};
HIT: foreach my $hit (@{ $results->{'hit'} }) {
my $recid = $hit->{recid}->[0];
my $work_title = $hit->{'md-work-title'}->[0];
my $work_author;
if (exists $hit->{'md-work-author'}) {
$work_author = $hit->{'md-work-author'}->[0];
}
my $group_label = (defined $work_author) ? "$work_title / $work_author" : $work_title;
my $result_group = {};
$result_group->{'group_label'} = $group_label;
$result_group->{'group_merge_key'} = $recid;
my $count = 1;
if (exists $hit->{count}) {
$count = $hit->{count}->[0];
}
$result_group->{'group_count'} = $count;
for (my $i = 0; $i < $count; $i++) {
# FIXME -- may need to worry about diacritics here
my $rec = $paz->record($recid, $i);
push @{ $result_group->{'RECORDS'} }, $rec;
}
push @{ $results_hashref->{'biblioserver'}->{'GROUPS'} }, $result_group;
}
# pass through facets
my $termlist_xml = $paz->termlist('author,subject');
my $terms = XMLin($termlist_xml, forcearray => 1);
my @facets_loop = ();
#die Dumper($results);
# foreach my $list (sort keys %{ $terms->{'list'} }) {
# my @facets = ();
# foreach my $facet (sort @{ $terms->{'list'}->{$list}->{'term'} } ) {
# push @facets, {
# facet_label_value => $facet->{'name'}->[0],
# };
# }
# push @facets_loop, ( {
# type_label => $list,
# facets => \@facets,
# } );
# }
return ( undef, $results_hashref, \@facets_loop );
}
# STOPWORDS
sub _remove_stopwords {
my ( $operand, $index ) = @_;
my @stopwords_removed;
# phrase and exact-qualified indexes shouldn't have stopwords removed
if ( $index !~ m/phr|ext/ ) {
# remove stopwords from operand : parse all stopwords & remove them (case insensitive)
# we use IsAlpha unicode definition, to deal correctly with diacritics.
# otherwise, a French word like "leçon" woudl be split into "le" "çon", "le"
# is a stopword, we'd get "çon" and wouldn't find anything...
foreach ( keys %{ C4::Context->stopwords } ) {
next if ( $_ =~ /(and|or|not)/ ); # don't remove operators
if ( my ($matched) = ($operand =~
/(\P{IsAlnum}\Q$_\E\P{IsAlnum}|^\Q$_\E\P{IsAlnum}|\P{IsAlnum}\Q$_\E$|^\Q$_\E$)/gi) )
{
$operand =~ s/\Q$matched\E/ /gi;
push @stopwords_removed, $_;
}
}
}
return ( $operand, \@stopwords_removed );
}
# TRUNCATION
sub _detect_truncation {
my ( $operand, $index ) = @_;
my ( @nontruncated, @righttruncated, @lefttruncated, @rightlefttruncated,
@regexpr );
$operand =~ s/^ //g;
my @wordlist = split( /\s/, $operand );
foreach my $word (@wordlist) {
if ( $word =~ s/^\*([^\*]+)\*$/$1/ ) {
push @rightlefttruncated, $word;
}
elsif ( $word =~ s/^\*([^\*]+)$/$1/ ) {
push @lefttruncated, $word;
}
elsif ( $word =~ s/^([^\*]+)\*$/$1/ ) {
push @righttruncated, $word;
}
elsif ( index( $word, "*" ) < 0 ) {
push @nontruncated, $word;
}
else {
push @regexpr, $word;
}
}
return (
\@nontruncated, \@righttruncated, \@lefttruncated,
\@rightlefttruncated, \@regexpr
);
}
# STEMMING
sub _build_stemmed_operand {
my ($operand) = @_;
my $stemmed_operand;
# If operand contains a digit, it is almost certainly an identifier, and should
# not be stemmed. This is particularly relevant for ISBNs and ISSNs, which
# can contain the letter "X" - for example, _build_stemmend_operand would reduce
# "014100018X" to "x ", which for a MARC21 database would bring up irrelevant
# results (e.g., "23 x 29 cm." from the 300$c). Bug 2098.
return $operand if $operand =~ /\d/;
# FIXME: the locale should be set based on the user's language and/or search choice
my $stemmer = Lingua::Stem->new( -locale => 'EN-US' );
# FIXME: these should be stored in the db so the librarian can modify the behavior
$stemmer->add_exceptions(
{
'and' => 'and',
'or' => 'or',
'not' => 'not',
}
);
my @words = split( / /, $operand );
my $stems = $stemmer->stem(@words);
for my $stem (@$stems) {
$stemmed_operand .= "$stem";
$stemmed_operand .= "?"
unless ( $stem =~ /(and$|or$|not$)/ ) || ( length($stem) < 3 );
$stemmed_operand .= " ";
}
warn "STEMMED OPERAND: $stemmed_operand" if $DEBUG;
return $stemmed_operand;
}
# FIELD WEIGHTING
sub _build_weighted_query {
# FIELD WEIGHTING - This is largely experimental stuff. What I'm committing works
# pretty well but could work much better if we had a smarter query parser
my ( $operand, $stemmed_operand, $index ) = @_;
my $stemming = C4::Context->preference("QueryStemming") || 0;
my $weight_fields = C4::Context->preference("QueryWeightFields") || 0;
my $fuzzy_enabled = C4::Context->preference("QueryFuzzy") || 0;
my $weighted_query .= "(rk=("; # Specifies that we're applying rank
# Keyword, or, no index specified
if ( ( $index eq 'kw' ) || ( !$index ) ) {
$weighted_query .=
"Title-cover,ext,r1=\"$operand\""; # exact title-cover
$weighted_query .= " or ti,ext,r2=\"$operand\""; # exact title
$weighted_query .= " or ti,phr,r3=\"$operand\""; # phrase title
#$weighted_query .= " or any,ext,r4=$operand"; # exact any
#$weighted_query .=" or kw,wrdl,r5=\"$operand\""; # word list any
$weighted_query .= " or wrdl,fuzzy,r8=\"$operand\""
if $fuzzy_enabled; # add fuzzy, word list
$weighted_query .= " or wrdl,right-Truncation,r9=\"$stemmed_operand\""
if ( $stemming and $stemmed_operand )
; # add stemming, right truncation
$weighted_query .= " or wrdl,r9=\"$operand\"";
# embedded sorting: 0 a-z; 1 z-a
# $weighted_query .= ") or (sort1,aut=1";
}
# Barcode searches should skip this process
elsif ( $index eq 'bc' ) {
$weighted_query .= "bc=\"$operand\"";
}
elsif ($index eq 'bcbib') {
my($bc,$bib) = split(/\|/,$operand,2);
$weighted_query .= "bc=\"$bc\")) or (rk=(biblionumber=\"$bib\"";
}
elsif ($index eq 'sn') { # from advanced search only, exact biblionumber
$weighted_query .= "biblionumber=\"$operand\"";
}
# Authority-number searches should skip this process
elsif ( $index eq 'an' ) {
$weighted_query .= "an=\"$operand\"";
}
# If the index already has more than one qualifier, wrap the operand
# in quotes and pass it back (assumption is that the user knows what they
# are doing and won't appreciate us mucking up their query
elsif ( $index =~ ',' ) {
$weighted_query .= " $index=\"$operand\"";
}
#TODO: build better cases based on specific search indexes
else {
$weighted_query .= " $index,ext,r1=\"$operand\""; # exact index
#$weighted_query .= " or (title-sort-az=0 or $index,startswithnt,st-word,r3=$operand #)";
$weighted_query .= " or $index,phr,r3=\"$operand\""; # phrase index
$weighted_query .=
" or $index,rt,wrdl,r3=\"$operand\""; # word list index
}
$weighted_query .= "))"; # close rank specification
$weighted_query = "ln,rtrn=$operand" if ($index eq "ln");
return $weighted_query;
}
=head2 buildQuery
( $error, $query,
$simple_query, $query_cgi,
$query_desc, $limit,
$limit_cgi, $limit_desc,
$stopwords_removed, $query_type ) = getRecords ( $operators, $operands, $indexes, $limits, $sort_by, $scan);
Build queries and limits in CCL, CGI, Human,
handle truncation, stemming, field weighting, stopwords, fuzziness, etc.
See verbose embedded documentation.
=cut
sub buildQuery {
my ( $operators, $operands, $indexes, $limits, $sort_by, $scan ) = @_;
warn "---------\nEnter buildQuery\n---------" if $DEBUG;
# dereference
my @operators = $operators ? @$operators : ();
my @indexes = $indexes ? @$indexes : ();
my @operands = $operands ? @$operands : ();
my @limits = $limits ? @$limits : ();
my @sort_by = $sort_by ? @$sort_by : ();
my $stemming = C4::Context->preference("QueryStemming") || 0;
my $auto_truncation = C4::Context->preference("QueryAutoTruncate") || 0;
my $weight_fields = C4::Context->preference("QueryWeightFields") || 0;
my $fuzzy_enabled = C4::Context->preference("QueryFuzzy") || 0;
my $remove_stopwords = C4::Context->preference("QueryRemoveStopwords") || 0;
# no stemming/weight/fuzzy in NoZebra
if ( C4::Context->preference("NoZebra") ) {
$stemming = 0;
$weight_fields = 0;
$fuzzy_enabled = 0;
}
my $query = $operands[0];
my $simple_query = $operands[0];
# initialize the variables we're passing back
my $query_cgi;
my $query_desc;
my $query_type;
my $limit;
my $limit_cgi;
my $limit_desc;
my $stopwords_removed; # flag to determine if stopwords have been removed
# for handling ccl, cql, pqf queries in diagnostic mode, skip the rest of the steps
# DIAGNOSTIC ONLY!!
if ( $query =~ /^ccl=/ ) {
return ( undef, $', $', "q=ccl=$'", $', '', '', '', '', 'ccl' );
}
if ( $query =~ /^cql=/ ) {
return ( undef, $', $', "q=cql=$'", $', '', '', '', '', 'cql' );
}
if ( $query =~ /^pqf=/ ) {
return ( undef, $', $', "q=pqf=$'", $', '', '', '', '', 'pqf' );
}
# pass nested queries directly
# FIXME: need better handling of some of these variables in this case
if ( $query =~ /(\(|\))/ ) {
return (
undef, $query, $simple_query, $query_cgi,
$query, $limit, $limit_cgi, $limit_desc,
$stopwords_removed, 'ccl'
);
}
# Form-based queries are non-nested and fixed depth, so we can easily modify the incoming
# query operands and indexes and add stemming, truncation, field weighting, etc.
# Once we do so, we'll end up with a value in $query, just like if we had an
# incoming $query from the user
else {
$query = ""
; # clear it out so we can populate properly with field-weighted, stemmed, etc. query
my $previous_operand
; # a flag used to keep track if there was a previous query
# if there was, we can apply the current operator
# for every operand
for ( my $i = 0 ; $i <= @operands ; $i++ ) {
# COMBINE OPERANDS, INDEXES AND OPERATORS
if ( $operands[$i] ) {
# A flag to determine whether or not to add the index to the query
my $indexes_set;
# If the user is sophisticated enough to specify an index, turn off field weighting, stemming, and stopword handling
if ( $operands[$i] =~ /(:|=)/ || $scan ) {
$weight_fields = 0;
$stemming = 0;
$remove_stopwords = 0;
}
my $operand = $operands[$i];
my $index = $indexes[$i];
# Add index-specific attributes
# Date of Publication
if ( $index eq 'yr' ) {
$index .= ",st-numeric";
$indexes_set++;
$stemming = $auto_truncation = $weight_fields = $fuzzy_enabled = $remove_stopwords = 0;
}
# Date of Acquisition
elsif ( $index eq 'acqdate' ) {
$index .= ",st-date-normalized";
$indexes_set++;
$stemming = $auto_truncation = $weight_fields = $fuzzy_enabled = $remove_stopwords = 0;
}
# ISBN,ISSN,Standard Number, don't need special treatment
elsif ( $index eq 'nb' || $index eq 'ns' ) {
$indexes_set++;
(
$stemming, $auto_truncation,
$weight_fields, $fuzzy_enabled,
$remove_stopwords
) = ( 0, 0, 0, 0, 0 );
}
# Set default structure attribute (word list)
my $struct_attr;
unless ( $indexes_set || !$index || $index =~ /(st-|phr|ext|wrdl)/ ) {
$struct_attr = ",wrdl";
}
# Some helpful index variants
my $index_plus = $index . $struct_attr . ":" if $index;
my $index_plus_comma = $index . $struct_attr . "," if $index;
if ($auto_truncation){
# FIXME Auto Truncation is only valid for LTR languages
# use C4::Output;
# use C4::Languages qw(regex_lang_subtags get_bidi);
# $lang = $query->cookie('KohaOpacLanguage') if (defined $query && $query->cookie('KohaOpacLanguage'));
# my $current_lang = regex_lang_subtags($lang);
# my $bidi;
# $bidi = get_bidi($current_lang->{script}) if $current_lang->{script};
$index_plus_comma .= "rtrn:";
}
# Remove Stopwords
if ($remove_stopwords) {
( $operand, $stopwords_removed ) =
_remove_stopwords( $operand, $index );
warn "OPERAND w/out STOPWORDS: >$operand<" if $DEBUG;
warn "REMOVED STOPWORDS: @$stopwords_removed"
if ( $stopwords_removed && $DEBUG );
}
# Detect Truncation
my $truncated_operand;
my( $nontruncated, $righttruncated, $lefttruncated,
$rightlefttruncated, $regexpr
) = _detect_truncation( $operand, $index );
warn
"TRUNCATION: NON:>@$nontruncated< RIGHT:>@$righttruncated< LEFT:>@$lefttruncated< RIGHTLEFT:>@$rightlefttruncated< REGEX:>@$regexpr<"
if $DEBUG;
# Apply Truncation
if (
scalar(@$righttruncated) + scalar(@$lefttruncated) +
scalar(@$rightlefttruncated) > 0 )
{
# Don't field weight or add the index to the query, we do it here
$indexes_set = 1;
undef $weight_fields;
my $previous_truncation_operand;
if (scalar @$nontruncated) {
$truncated_operand .= "$index_plus @$nontruncated ";
$previous_truncation_operand = 1;
}
if (scalar @$righttruncated) {
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= $index_plus_comma . "rtrn:@$righttruncated ";
$previous_truncation_operand = 1;
}
if (scalar @$lefttruncated) {
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= $index_plus_comma . "ltrn:@$lefttruncated ";
$previous_truncation_operand = 1;
}
if (scalar @$rightlefttruncated) {
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= $index_plus_comma . "rltrn:@$rightlefttruncated ";
$previous_truncation_operand = 1;
}
}
$operand = $truncated_operand if $truncated_operand;
warn "TRUNCATED OPERAND: >$truncated_operand<" if $DEBUG;
# Handle Stemming
my $stemmed_operand;
$stemmed_operand = _build_stemmed_operand($operand) if $stemming;
warn "STEMMED OPERAND: >$stemmed_operand<" if $DEBUG;
# Handle Field Weighting
my $weighted_operand;
if ($weight_fields) {
$weighted_operand = _build_weighted_query( $operand, $stemmed_operand, $index );
$operand = $weighted_operand;
$indexes_set = 1;
}
warn "FIELD WEIGHTED OPERAND: >$weighted_operand<" if $DEBUG;
# If there's a previous operand, we need to add an operator
if ($previous_operand) {
# User-specified operator
if ( $operators[ $i - 1 ] ) {
$query .= " $operators[$i-1] ";
$query .= " $index_plus " unless $indexes_set;
$query .= " $operand";
$query_cgi .= "&op=$operators[$i-1]";
$query_cgi .= "&idx=$index" if $index;
$query_cgi .= "&q=$operands[$i]" if $operands[$i];
$query_desc .=
" $operators[$i-1] $index_plus $operands[$i]";
}
# Default operator is and
else {
$query .= " and ";
$query .= "$index_plus " unless $indexes_set;
$query .= "$operand";
$query_cgi .= "&op=and&idx=$index" if $index;
$query_cgi .= "&q=$operands[$i]" if $operands[$i];
$query_desc .= " and $index_plus $operands[$i]";
}
}
# There isn't a pervious operand, don't need an operator
else {
# Field-weighted queries already have indexes set
$query .= " $index_plus " unless $indexes_set;
$query .= $operand;
$query_desc .= " $index_plus $operands[$i]";
$query_cgi .= "&idx=$index" if $index;
$query_cgi .= "&q=$operands[$i]" if $operands[$i];
$previous_operand = 1;
}
} #/if $operands
} # /for
}
warn "QUERY BEFORE LIMITS: >$query<" if $DEBUG;
# add limits
my $group_OR_limits;
my $availability_limit;
foreach my $this_limit (@limits) {
if ( $this_limit =~ /available/ ) {
# 'available' is defined as (items.onloan is NULL) and (items.itemlost = 0)
# In English:
# all records not indexed in the onloan register (zebra) and all records with a value of lost equal to 0
$availability_limit .=
"( ( allrecords,AlwaysMatches='' not onloan,AlwaysMatches='') and (lost,st-numeric=0) )"; #or ( allrecords,AlwaysMatches='' not lost,AlwaysMatches='')) )";
$limit_cgi .= "&limit=available";
$limit_desc .= "";
}
# group_OR_limits, prefixed by mc-
# OR every member of the group
elsif ( $this_limit =~ /mc/ ) {
$group_OR_limits .= " or " if $group_OR_limits;
$limit_desc .= " or " if $group_OR_limits;
$group_OR_limits .= "$this_limit";
$limit_cgi .= "&limit=$this_limit";
$limit_desc .= " $this_limit";
}
# Regular old limits
else {
$limit .= " and " if $limit || $query;
$limit .= "$this_limit";
$limit_cgi .= "&limit=$this_limit";
if ($this_limit =~ /^branch:(.+)/) {
my $branchcode = $1;
my $branchname = GetBranchName($branchcode);
if (defined $branchname) {
$limit_desc .= " branch:$branchname";
} else {
$limit_desc .= " $this_limit";
}
} else {
$limit_desc .= " $this_limit";
}
}
}
if ($group_OR_limits) {
$limit .= " and " if ( $query || $limit );
$limit .= "($group_OR_limits)";
}
if ($availability_limit) {
$limit .= " and " if ( $query || $limit );
$limit .= "($availability_limit)";
}
# Normalize the query and limit strings
$query =~ s/:/=/g;
$limit =~ s/:/=/g;
for ( $query, $query_desc, $limit, $limit_desc ) {
s/ / /g; # remove extra spaces
s/^ //g; # remove any beginning spaces
s/ $//g; # remove any ending spaces
s/==/=/g; # remove double == from query
}
$query_cgi =~ s/^&//; # remove unnecessary & from beginning of the query cgi
for ($query_cgi,$simple_query) {
s/"//g;
}
# append the limit to the query
$query .= " " . $limit;
# Warnings if DEBUG
if ($DEBUG) {
warn "QUERY:" . $query;
warn "QUERY CGI:" . $query_cgi;
warn "QUERY DESC:" . $query_desc;
warn "LIMIT:" . $limit;
warn "LIMIT CGI:" . $limit_cgi;
warn "LIMIT DESC:" . $limit_desc;
warn "---------\nLeave buildQuery\n---------";
}
return (
undef, $query, $simple_query, $query_cgi,
$query_desc, $limit, $limit_cgi, $limit_desc,
$stopwords_removed, $query_type
);
}
=head2 searchResults
Format results in a form suitable for passing to the template
=cut
# IMO this subroutine is pretty messy still -- it's responsible for
# building the HTML output for the template
sub searchResults {
my ( $searchdesc, $hits, $results_per_page, $offset, $scan, $opac, @marcresults ) = @_;
my $dbh = C4::Context->dbh;
my @newresults;
#Build branchnames hash
#find branchname
#get branch information.....
my %branches;
my $bsth =$dbh->prepare("SELECT branchcode,branchname FROM branches"); # FIXME : use C4::Branch::GetBranches
$bsth->execute();
while ( my $bdata = $bsth->fetchrow_hashref ) {
$branches{ $bdata->{'branchcode'} } = $bdata->{'branchname'};
}
# FIXME - We build an authorised values hash here, using the default framework
# though it is possible to have different authvals for different fws.
my $shelflocations =GetKohaAuthorisedValues('items.location','',undef,$opac);
# get notforloan authorised value list (see $shelflocations FIXME)
my $notforloan_authorised_value = GetAuthValCode('items.notforloan','');
#Build itemtype hash
#find itemtype & itemtype image
my %itemtypes;
$bsth =
$dbh->prepare(
"SELECT itemtype,description,imageurl,summary,notforloan FROM itemtypes"
);
$bsth->execute();
while ( my $bdata = $bsth->fetchrow_hashref ) {
foreach (qw(description imageurl summary notforloan)) {
$itemtypes{ $bdata->{'itemtype'} }->{$_} = $bdata->{$_};
}
}
#search item field code
my $sth =
$dbh->prepare(
"SELECT tagfield FROM marc_subfield_structure WHERE kohafield LIKE 'items.itemnumber'"
);
$sth->execute;
my ($itemtag) = $sth->fetchrow;
my %subfieldstosearch;
if (!$opac || !C4::Context->preference('OPACXSLTResultsDisplay')) {
my $sth2 = $dbh->prepare("SHOW COLUMNS FROM items");
$sth2->execute;
while ( ( my $column ) = $sth2->fetchrow ) {
my ( $tagfield, $tagsubfield ) =
&GetMarcFromKohaField( "items." . $column, "" );
$subfieldstosearch{$column} = $tagsubfield;
}
}
# handle which records to actually retrieve
my $times;
if ( $hits && $offset + $results_per_page <= $hits ) {
$times = $offset + $results_per_page;
}
else {
$times = $hits; # FIXME: if $hits is undefined, why do we want to equal it?
}
my $marcflavour = C4::Context->preference("marcflavour");
# loop through all of the records we've retrieved
for ( my $i = $offset ; $i <= $times - 1 ; $i++ ) {
my $marcrecord;
eval { $marcrecord = MARC::Record->new_from_xml( $marcresults[$i], 'UTF-8' )};
if($@){
warn "could not read marcxml. $@";
next;
}
my $oldbiblio = TransformMarcToKoha( $dbh, $marcrecord, '' );
$oldbiblio->{subtitle} = C4::Biblio::get_koha_field_from_marc('bibliosubtitle', 'subtitle', $marcrecord, '');
$oldbiblio->{result_number} = $i + 1;
# Grab item information
# my $marcitems = C4::Items::GetMarcWithItems($oldbiblio->{biblionumber},$marcresults[$i]);
# add imageurl to itemtype if there is one
$oldbiblio->{imageurl} = getitemtypeimagelocation( 'opac', $itemtypes{ $oldbiblio->{itemtype} }->{imageurl} );
if (C4::Context->preference('AuthorisedValueImages')) {
$oldbiblio->{authorised_value_images} = C4::Items::get_authorised_value_images(
C4::Biblio::get_biblio_authorised_values($oldbiblio->{'biblionumber'}, $marcrecord)
);
}
$oldbiblio->{normalized_upc} = GetNormalizedUPC( $marcrecord,$marcflavour);
$oldbiblio->{normalized_ean} = GetNormalizedEAN( $marcrecord,$marcflavour);
$oldbiblio->{normalized_oclc} = GetNormalizedOCLCNumber($marcrecord,$marcflavour);
$oldbiblio->{normalized_isbn} = GetNormalizedISBN(undef,$marcrecord,$marcflavour);
$oldbiblio->{content_identifier_exists} = 1 if ($oldbiblio->{normalized_isbn} or $oldbiblio->{normalized_oclc} or $oldbiblio->{normalized_ean} or $oldbiblio->{normalized_upc});
# edition information, if any
$oldbiblio->{edition} = $oldbiblio->{editionstatement};
$oldbiblio->{description} = $itemtypes{ $oldbiblio->{itemtype} }->{description};
# Build summary if there is one (the summary is defined in the itemtypes table)
# FIXME: is this used anywhere, I think it can be commented out? -- JF
if ( $itemtypes{ $oldbiblio->{itemtype} }->{summary} ) {
my $summary = $itemtypes{ $oldbiblio->{itemtype} }->{summary};
my @fields = $marcrecord->fields();
foreach my $field (@fields) {
my $tag = $field->tag();
my $tagvalue = $field->as_string();
$summary =~
s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
unless ( $tag < 10 ) {
my @subf = $field->subfields;
for my $i ( 0 .. $#subf ) {
my $subfieldcode = $subf[$i][0];
my $subfieldvalue = $subf[$i][1];
my $tagsubf = $tag . $subfieldcode;
$summary =~
s/\[(.?.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue$2\[$1$tagsubf$2]/g;
}
}
}
# FIXME: yuk
$summary =~ s/\[(.*?)]//g;
$summary =~ s/\n/<br\/>/g;
$oldbiblio->{summary} = $summary;
}
my %restype;
my ($rescount,$reserves) = C4::Reserves::GetReservesFromBiblionumber($oldbiblio->{biblionumber});
my $total_rescount = $rescount;
foreach my $res (@$reserves) {
if ($res->{itemnumber}) {
$restype{$res->{itemnumber}} = "Attached";
$rescount--;
}
}
my ($suspended_rescount,$suspended_reserves) = C4::Reserves::GetSuspendedReservesFromBiblionumber($oldbiblio->{biblionumber});
($i % 2) and $oldbiblio->{'toggle'} = 1;
# Pull out the items fields
my @fields = $marcrecord->field($itemtag);
# my @fields = $marcitems->field($itemtag);
# Setting item statuses for display
my @available_items_loop;
my @onloan_items_loop;
my @other_items_loop;
my $available_items;
my $onloan_items;
my $other_items;
my $ordered_count = 0;
my $available_count = 0;
my $onloan_count = 0;
my $longoverdue_count = 0;
my $other_count = 0;
my $wthdrawn_count = 0;
my $itemlost_count = 0;
my $itemsuppress_count = 0;
my $itembinding_count = 0;
my $itemdamaged_count = 0;
my $item_in_transit_count = 0;
my $item_reserve_count = 0;
my $can_place_holds = 0;
my $items_count = scalar(@fields);
my $other_otherstatus = '';
my $other_otherstatus_count = 0;
# loop through every item
my $itemcount = 0;
foreach my $field (@fields) {
$itemcount++;
my $item;
# populate the items hash
if (!$opac || !C4::Context->preference('OPACXSLTResultsDisplay')) {
foreach my $code ( keys %subfieldstosearch ) {
$item->{$code} = $field->subfield( $subfieldstosearch{$code} );
}
}
my $hbranch = C4::Context->preference('HomeOrHoldingBranch') eq 'homebranch' ? 'homebranch' : 'holdingbranch';
my $otherbranch = C4::Context->preference('HomeOrHoldingBranch') eq 'homebranch' ? 'holdingbranch' : 'homebranch';
# set item's branch name, use HomeOrHoldingBranch syspref first, fall back to the other one
if ($item->{$hbranch}) {
$item->{'branchname'} = $branches{$item->{$hbranch}};
}
elsif ($item->{$otherbranch}) { # Last resort
$item->{'branchname'} = $branches{$item->{$otherbranch}};
}
my $sth = $dbh->prepare(
"SELECT description,holdsallowed
FROM itemstatus
LEFT JOIN items ON itemstatus.statuscode=items.otherstatus
WHERE itemnumber = ?"
);
$sth->execute($item->{itemnumber});
my @statusvalue = $sth->fetchrow;
my ($otherstatus,$holdsallowed,$OPACstatusdisplay);
if (@statusvalue) {
($otherstatus,$holdsallowed) = @statusvalue;
$OPACstatusdisplay = 1;
}
else {
$otherstatus = '';
$holdsallowed = 1;
$OPACstatusdisplay = 0;
}
my $prefix = $item->{$hbranch} . '--' . $item->{location} . $item->{itype} . $item->{itemcallnumber};
# For each grouping of items (onloan, available, unavailable), we build a key to store relevant info about that item
if ( $item->{onloan} ) {
$onloan_count++;
my $key = $prefix . $item->{onloan} . $item->{barcode};
$onloan_items->{$key}->{due_date} = format_date($item->{onloan});
$onloan_items->{$key}->{count}++ if $item->{$hbranch};
$onloan_items->{$key}->{branchname} = $item->{branchname};
$onloan_items->{$key}->{location} = $shelflocations->{ $item->{location} };
$onloan_items->{$key}->{itemcallnumber} = $item->{itemcallnumber};
$onloan_items->{$key}->{imageurl} = getitemtypeimagelocation( 'opac', $itemtypes{ $item->{itype} }->{imageurl} );
# if something's checked out and lost, mark it as 'long overdue'
if ( $item->{itemlost} ) {
$onloan_items->{$prefix}->{longoverdue}++;
$longoverdue_count++;
} else { # can place holds as long as item isn't lost
$can_place_holds = 1;
}
}
# items not on loan, but still unavailable ( lost, withdrawn, damaged, suppressed )
else {
# item is on order
if ( $item->{notforloan} == -1 ) {
$ordered_count++;
}
# is item in transit?
my $transfertwhen = '';
my ($transfertfrom, $transfertto);
unless ($item->{wthdrawn}
|| $item->{itemlost}
|| $item->{damaged}
|| $item->{suppress}
|| $item->{notforloan}
|| ($holdsallowed == 0)
|| $items_count > 20) {
# A couple heuristics to limit how many times
# we query the database for item transfer information, sacrificing
# accuracy in some cases for speed;
#
# 1. don't query if item has one of the other statuses
# 2. don't check transit status if the bib has
# more than 20 items
#
# FIXME: to avoid having the query the database like this, and to make
# the in transit status count as unavailable for search limiting,
# should map transit status to record indexed in Zebra.
#
($transfertwhen, $transfertfrom, $transfertto) = C4::Circulation::GetTransfers($item->{itemnumber});
}
if ($restype{$item->{itemnumber}} ne "Attached") {
$restype{$item->{itemnumber}} = ($itemcount <= $rescount) ? "Reserved" : '';
}
# item is withdrawn, lost or damaged
if ( $item->{wthdrawn}
|| $item->{itemlost}
|| $item->{damaged}
|| $item->{suppress}
|| ($item->{notforloan} > 0)
|| ($holdsallowed == 0)
|| ($transfertwhen ne '')
|| ($restype{$item->{itemnumber}} eq "Attached")
|| ($restype{$item->{itemnumber}} eq "Reserved") )
{
$wthdrawn_count++ if $item->{wthdrawn};
$itemlost_count++ if $item->{itemlost};
$itemdamaged_count++ if $item->{damaged};
$item_reserve_count++ if (($restype{$item->{itemnumber}} eq "Attached") || ($restype{$item->{itemnumber}} eq "Reserved"));
if (($restype{$item->{itemnumber}} eq "Attached") || ($restype{$item->{itemnumber}} eq "Reserved")) {
$can_place_holds = 1;
}
$itemsuppress_count++ if $item->{suppress};
$item_in_transit_count++ if $transfertwhen ne '';
$item->{status} = $item->{wthdrawn} . "-" . $item->{itemlost} . "-" . $item->{damaged} . "-" . $item->{suppress} . "-" . $item->{notforloan};
$other_count++;
if ($holdsallowed == 0) {
$other_otherstatus_count++;
if ($other_otherstatus eq '') {
$other_otherstatus = $otherstatus;
}
else {
$other_otherstatus .= ', ' . $otherstatus;
}
}
my $key = $prefix . $item->{status};
foreach (qw(wthdrawn itemlost damaged suppress branchname itemcallnumber)) {
$other_items->{$key}->{$_} = $item->{$_};
}
$other_items->{$key}->{intransit} = ($transfertwhen ne '') ? 1 : 0;
$other_items->{$key}->{reserved} = (($restype{$item->{itemnumber}} eq "Attached") || ($restype{$item->{itemnumber}} eq "Reserved")) ? 1 : 0;
$other_items->{$key}->{notforloan} = GetAuthorisedValueDesc('','',$item->{notforloan},'','',$notforloan_authorised_value,$opac) if $notforloan_authorised_value;
$other_items->{$key}->{count}++ if $item->{$hbranch};
$other_items->{$key}->{location} = $shelflocations->{ $item->{location} };
$other_items->{$key}->{imageurl} = getitemtypeimagelocation( 'opac', $itemtypes{ $item->{itype} }->{imageurl} );
$other_items->{$key}->{OPACstatusdisplay} = $OPACstatusdisplay;
if (!defined($other_items->{$key}->{otherstatus})) {
$other_items->{$key}->{otherstatus} = $otherstatus;
}
else {
$other_items->{$key}->{otherstatus} .=', ' . $otherstatus;
}
}
# item is available
else {
$can_place_holds = 1;
$available_count++;
$available_items->{$prefix}->{count}++ if $item->{$hbranch};
foreach (qw(branchname itemcallnumber)) {
$available_items->{$prefix}->{$_} = $item->{$_};
}
$available_items->{$prefix}->{location} = $shelflocations->{ $item->{location} };
$available_items->{$prefix}->{imageurl} = getitemtypeimagelocation( 'opac', $itemtypes{ $item->{itype} }->{imageurl} );
$available_items->{$prefix}->{OPACstatusdisplay} = $OPACstatusdisplay;
$available_items->{$prefix}->{otherstatus} = $otherstatus;
}
}
} # notforloan, item level and biblioitem level
my ($availableitemscount, $onloanitemscount, $otheritemscount) = (0, 0, 0);
my $maxitems = C4::Context->preference('maxItemsinSearchResults') // 1;
for my $key ( sort keys %$onloan_items ) {
($onloanitemscount++ > $maxitems) and last;
push @onloan_items_loop, $onloan_items->{$key};
}
for my $key ( sort keys %$other_items ) {
($otheritemscount++ > $maxitems) and last;
push @other_items_loop, $other_items->{$key};
}
for my $key ( sort keys %$available_items ) {
($availableitemscount++ > $maxitems) and last;
push @available_items_loop, $available_items->{$key}
}
# XSLT processing of some stuff for staff client
if (C4::Context->preference("XSLTResultsDisplay") && !$scan && (!$opac)) {
$oldbiblio->{XSLTResultsRecord} = XSLTParse4Display(
$oldbiblio->{biblionumber}, $marcrecord, 'Results', 'intranet');
}
# XSLT processing of some stuff for OPAC
if (C4::Context->preference("OPACXSLTResultsDisplay") && !$scan && ($opac)) {
$oldbiblio->{XSLTResultsRecord} = XSLTParse4Display(
$oldbiblio->{biblionumber}, $marcrecord, 'Results', 'opac');
}
# last check for norequest : if itemtype is notforloan, it can't be reserved either, whatever the items
$can_place_holds = 0
if $itemtypes{ $oldbiblio->{itemtype} }->{notforloan};
$oldbiblio->{norequests} = 1 unless $can_place_holds;
$oldbiblio->{itemsplural} = 1 if $items_count > 1;
$oldbiblio->{items_count} = $items_count;
$oldbiblio->{available_items_loop} = \@available_items_loop;
$oldbiblio->{onloan_items_loop} = \@onloan_items_loop;
$oldbiblio->{other_items_loop} = \@other_items_loop;
$oldbiblio->{availablecount} = $available_count;
$oldbiblio->{availableplural} = 1 if $available_count > 1;
$oldbiblio->{onloancount} = $onloan_count;
$oldbiblio->{onloanplural} = 1 if $onloan_count > 1;
$oldbiblio->{othercount} = $other_count;
$oldbiblio->{otherplural} = 1 if $other_count > 1;
$oldbiblio->{wthdrawncount} = $wthdrawn_count;
$oldbiblio->{itemlostcount} = $itemlost_count;
$oldbiblio->{damagedcount} = $itemdamaged_count;
$oldbiblio->{intransitcount} = $item_in_transit_count;
$oldbiblio->{orderedcount} = $ordered_count;
$oldbiblio->{reservecount} = $item_reserve_count;
$oldbiblio->{total_reservecount} = $total_rescount;
$oldbiblio->{active_reservecount} = $total_rescount - $suspended_rescount;
$oldbiblio->{other_otherstatus} = $other_otherstatus;
$oldbiblio->{other_otherstatuscount} = $other_otherstatus_count;
push( @newresults, $oldbiblio );
}
return @newresults;
}
#----------------------------------------------------------------------
#
# Non-Zebra GetRecords#
#----------------------------------------------------------------------
=head2 NZgetRecords
NZgetRecords has the same API as zera getRecords, even if some parameters are not managed
=cut
sub NZgetRecords {
my (
$query, $simple_query, $sort_by_ref, $servers_ref,
$results_per_page, $offset, $expanded_facet, $branches,
$query_type, $scan
) = @_;
warn "query =$query" if $DEBUG;
my $result = NZanalyse($query);
warn "results =$result" if $DEBUG;
return ( undef,
NZorder( $result, @$sort_by_ref[0], $results_per_page, $offset ),
undef );
}
=head2 NZanalyse
NZanalyse : get a CQL string as parameter, and returns a list of biblionumber;title,biblionumber;title,...
the list is built from an inverted index in the nozebra SQL table
note that title is here only for convenience : the sorting will be very fast when requested on title
if the sorting is requested on something else, we will have to reread all results, and that may be longer.
=cut
sub NZanalyse {
my ( $string, $server ) = @_;
# warn "---------" if $DEBUG;
warn " NZanalyse" if $DEBUG;
# warn "---------" if $DEBUG;
# $server contains biblioserver or authorities, depending on what we search on.
#warn "querying : $string on $server";
$server = 'biblioserver' unless $server;
# if we have a ", replace the content to discard temporarily any and/or/not inside
my $commacontent;
if ( $string =~ /"/ ) {
$string =~ s/"(.*?)"/__X__/;
$commacontent = $1;
warn "commacontent : $commacontent" if $DEBUG;
}
# split the query string in 3 parts : X AND Y means : $left="X", $operand="AND" and $right="Y"
# then, call again NZanalyse with $left and $right
# (recursive until we find a leaf (=> something without and/or/not)
# delete repeated operator... Would then go in infinite loop
while ( $string =~ s/( and| or| not| AND| OR| NOT)\1/$1/g ) {
}
#process parenthesis before.
if ( $string =~ /^\s*\((.*)\)(( and | or | not | AND | OR | NOT )(.*))?/ ) {
my $left = $1;
my $right = $4;
my $operator = lc($3); # FIXME: and/or/not are operators, not operands
warn
"dealing w/parenthesis before recursive sub call. left :$left operator:$operator right:$right"
if $DEBUG;
my $leftresult = NZanalyse( $left, $server );
if ($operator) {
my $rightresult = NZanalyse( $right, $server );
# OK, we have the results for right and left part of the query
# depending of operand, intersect, union or exclude both lists
# to get a result list
if ( $operator eq ' and ' ) {
return NZoperatorAND($leftresult,$rightresult);
}
elsif ( $operator eq ' or ' ) {
# just merge the 2 strings
return $leftresult . $rightresult;
}
elsif ( $operator eq ' not ' ) {
return NZoperatorNOT($leftresult,$rightresult);
}
}
else {
# this error is impossible, because of the regexp that isolate the operand, but just in case...
return $leftresult;
}
}
warn "string :" . $string if $DEBUG;
my $left = "";
my $right = "";
my $operator = "";
if ($string =~ /(.*?)( and | or | not | AND | OR | NOT )(.*)/) {
$left = $1;
$right = $3;
$operator = lc($2); # FIXME: and/or/not are operators, not operands
}
warn "no parenthesis. left : $left operator: $operator right: $right"
if $DEBUG;
# it's not a leaf, we have a and/or/not
if ($operator) {
# reintroduce comma content if needed
$right =~ s/__X__/"$commacontent"/ if $commacontent;
$left =~ s/__X__/"$commacontent"/ if $commacontent;
warn "node : $left / $operator / $right\n" if $DEBUG;
my $leftresult = NZanalyse( $left, $server );
my $rightresult = NZanalyse( $right, $server );
warn " leftresult : $leftresult" if $DEBUG;
warn " rightresult : $rightresult" if $DEBUG;
# OK, we have the results for right and left part of the query
# depending of operand, intersect, union or exclude both lists
# to get a result list
if ( $operator eq ' and ' ) {
warn "NZAND";
return NZoperatorAND($leftresult,$rightresult);
}
elsif ( $operator eq ' or ' ) {
# just merge the 2 strings
return $leftresult . $rightresult;
}
elsif ( $operator eq ' not ' ) {
return NZoperatorNOT($leftresult,$rightresult);
}
else {
# this error is impossible, because of the regexp that isolate the operand, but just in case...
die "error : operand unknown : $operator for $string";
}
# it's a leaf, do the real SQL query and return the result
}
else {
$string =~ s/__X__/"$commacontent"/ if $commacontent;
$string =~ s/-|\.|\?|,|;|!|'|\(|\)|\[|\]|{|}|"|&|\+|\*|\// /g;
#remove trailing blank at the beginning
$string =~ s/^ //g;
warn "leaf:$string" if $DEBUG;
# parse the string in in operator/operand/value again
my $left = "";
my $operator = "";
my $right = "";
if ($string =~ /(.*)(>=|<=)(.*)/) {
$left = $1;
$operator = $2;
$right = $3;
} else {
$left = $string;
}
# warn "handling leaf... left:$left operator:$operator right:$right"
# if $DEBUG;
unless ($operator) {
if ($string =~ /(.*)(>|<|=)(.*)/) {
$left = $1;
$operator = $2;
$right = $3;
warn
"handling unless (operator)... left:$left operator:$operator right:$right"
if $DEBUG;
} else {
$left = $string;
}
}
my $results;
# strip adv, zebra keywords, currently not handled in nozebra: wrdl, ext, phr...
$left =~ s/ .*$//;
# automatic replace for short operators
$left = 'title' if $left =~ '^ti$';
$left = 'author' if $left =~ '^au$';
$left = 'publisher' if $left =~ '^pb$';
$left = 'subject' if $left =~ '^su$';
$left = 'koha-Auth-Number' if $left =~ '^an$';
$left = 'keyword' if $left =~ '^kw$';
$left = 'itemtype' if $left =~ '^mc$'; # Fix for Bug 2599 - Search limits not working for NoZebra
warn "handling leaf... left:$left operator:$operator right:$right" if $DEBUG;
my $dbh = C4::Context->dbh;
if ( $operator && $left ne 'keyword' ) {
#do a specific search
$operator = 'LIKE' if $operator eq '=' and $right =~ /%/;
my $sth = $dbh->prepare(
"SELECT biblionumbers,value FROM nozebra WHERE server=? AND indexname=? AND value $operator ?"
);
warn "$left / $operator / $right\n" if $DEBUG;
# split each word, query the DB and build the biblionumbers result
#sanitizing leftpart
$left =~ s/^\s+|\s+$//;
foreach ( split / /, $right ) {
my $biblionumbers;
$_ =~ s/^\s+|\s+$//;
next unless $_;
warn "EXECUTE : $server, $left, $_" if $DEBUG;
$sth->execute( $server, $left, $_ )
or warn "execute failed: $!";
while ( my ( $line, $value ) = $sth->fetchrow ) {
# if we are dealing with a numeric value, use only numeric results (in case of >=, <=, > or <)
# otherwise, fill the result
$biblionumbers .= $line
unless ( $right =~ /^\d+$/ && $value =~ /\D/ );
warn "result : $value "
. ( $right =~ /\d/ ) . "=="
. ( $value =~ /\D/?$line:"" ) if $DEBUG; #= $line";
}
# do a AND with existing list if there is one, otherwise, use the biblionumbers list as 1st result list
if ($results) {
warn "NZAND" if $DEBUG;
$results = NZoperatorAND($biblionumbers,$results);
} else {
$results = $biblionumbers;
}
}
}
else {
#do a complete search (all indexes), if index='kw' do complete search too.
my $sth = $dbh->prepare(
"SELECT biblionumbers FROM nozebra WHERE server=? AND value LIKE ?"
);
# split each word, query the DB and build the biblionumbers result
foreach ( split / /, $string ) {
next if C4::Context->stopwords->{ uc($_) }; # skip if stopword
warn "search on all indexes on $_" if $DEBUG;
my $biblionumbers;
next unless $_;
$sth->execute( $server, $_ );
while ( my $line = $sth->fetchrow ) {
$biblionumbers .= $line;
}
# do a AND with existing list if there is one, otherwise, use the biblionumbers list as 1st result list
if ($results) {
$results = NZoperatorAND($biblionumbers,$results);
}
else {
warn "NEW RES for $_ = $biblionumbers" if $DEBUG;
$results = $biblionumbers;
}
}
}
warn "return : $results for LEAF : $string" if $DEBUG;
return $results;
}
warn "---------\nLeave NZanalyse\n---------" if $DEBUG;
}
sub NZoperatorAND{
my ($rightresult, $leftresult)=@_;
my @leftresult = split /;/, $leftresult;
warn " @leftresult / $rightresult \n" if $DEBUG;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
# parse the left results, and if the biblionumber exist in the right result, save it in finalresult
# the result is stored twice, to have the same weight for AND than OR.
# example : TWO : 61,61,64,121 (two is twice in the biblio #61) / TOWER : 61,64,130
# result : 61,61,61,61,64,64 for two AND tower : 61 has more weight than 64
foreach (@leftresult) {
my $value = $_;
my $countvalue;
( $value, $countvalue ) = ( $1, $2 ) if ($value=~/(.*)-(\d+)$/);
if ( $rightresult =~ /\Q$value\E-(\d+);/ ) {
$countvalue = ( $1 > $countvalue ? $countvalue : $1 );
$finalresult .=
"$value-$countvalue;$value-$countvalue;";
}
}
warn "NZAND DONE : $finalresult \n" if $DEBUG;
return $finalresult;
}
sub NZoperatorOR{
my ($rightresult, $leftresult)=@_;
return $rightresult.$leftresult;
}
sub NZoperatorNOT{
my ($leftresult, $rightresult)=@_;
my @leftresult = split /;/, $leftresult;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
foreach (@leftresult) {
my $value=$_;
$value=$1 if $value=~m/(.*)-\d+$/;
unless ($rightresult =~ "$value-") {
$finalresult .= "$_;";
}
}
return $finalresult;
}
=head2 NZorder
$finalresult = NZorder($biblionumbers, $ordering,$results_per_page,$offset);
TODO :: Description
=cut
sub NZorder {
my ( $biblionumbers, $ordering, $results_per_page, $offset ) = @_;
warn "biblionumbers = $biblionumbers and ordering = $ordering\n" if $DEBUG;
# order title asc by default
# $ordering = '1=36 <i' unless $ordering;
$results_per_page = 20 unless $results_per_page;
$offset = 0 unless $offset;
my $dbh = C4::Context->dbh;
#
# order by POPULARITY
#
if ( $ordering =~ /popularity/ ) {
my %result;
my %popularity;
# popularity is not in MARC record, it's builded from a specific query
my $sth =
$dbh->prepare("select sum(issues) from items where biblionumber=?");
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
$result{$biblionumber} = GetMarcBiblio($biblionumber);
$sth->execute($biblionumber);
my $popularity = $sth->fetchrow || 0;
# hint : the key is popularity.title because we can have
# many results with the same popularity. In this case, sub-ordering is done by title
# we also have biblionumber to avoid bug for 2 biblios with the same title & popularity
# (un-frequent, I agree, but we won't forget anything that way ;-)
$popularity{ sprintf( "%10d", $popularity ) . $title
. $biblionumber } = $biblionumber;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
if ( $ordering eq 'popularity_dsc' ) { # sort popularity DESC
foreach my $key ( sort { $b cmp $a } ( keys %popularity ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{ $popularity{$key} }->as_usmarc();
}
}
else { # sort popularity ASC
foreach my $key ( sort ( keys %popularity ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{ $popularity{$key} }->as_usmarc();
}
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY author
#
}
elsif ( $ordering =~ /author/ ) {
my %result;
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
my $record = GetMarcBiblio($biblionumber);
my $author;
if ( C4::Context->preference('marcflavour') eq 'UNIMARC' ) {
$author = $record->subfield( '200', 'f' );
$author = $record->subfield( '700', 'a' ) unless $author;
}
else {
$author = $record->subfield( '100', 'a' );
}
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{ $author . $biblionumber } = $record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
if ( $ordering eq 'author_za' ) { # sort by author desc
foreach my $key ( sort { $b cmp $a } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
else { # sort by author ASC
foreach my $key ( sort ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY callnumber
#
}
elsif ( $ordering =~ /callnumber/ ) {
my %result;
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
my $record = GetMarcBiblio($biblionumber);
my $callnumber;
my $frameworkcode = GetFrameworkCode($biblionumber);
my ( $callnumber_tag, $callnumber_subfield ) = GetMarcFromKohaField( 'items.itemcallnumber', $frameworkcode);
( $callnumber_tag, $callnumber_subfield ) = GetMarcFromKohaField('biblioitems.callnumber', $frameworkcode)
unless $callnumber_tag;
if ( C4::Context->preference('marcflavour') eq 'UNIMARC' ) {
$callnumber = $record->subfield( '200', 'f' );
} else {
$callnumber = $record->subfield( '100', 'a' );
}
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{ $callnumber . $biblionumber } = $record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
if ( $ordering eq 'call_number_dsc' ) { # sort by title desc
foreach my $key ( sort { $b cmp $a } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
else { # sort by title ASC
foreach my $key ( sort { $a cmp $b } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
}
elsif ( $ordering =~ /pubdate/ ) { #pub year
my %result;
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
my $record = GetMarcBiblio($biblionumber);
my ( $publicationyear_tag, $publicationyear_subfield ) =
GetMarcFromKohaField( 'biblioitems.publicationyear', '' );
my $publicationyear =
$record->subfield( $publicationyear_tag,
$publicationyear_subfield );
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{ $publicationyear . $biblionumber } = $record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
if ( $ordering eq 'pubdate_dsc' ) { # sort by pubyear desc
foreach my $key ( sort { $b cmp $a } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
else { # sort by pub year ASC
foreach my $key ( sort ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] =
$result{$key}->as_usmarc();
}
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY title
#
}
elsif ( $ordering =~ /title/ ) {
# the title is in the biblionumbers string, so we just need to build a hash, sort it and return
my %result;
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
# hint & speed improvement : we can order without reading the record
# so order, and read records only for the requested page !
$result{ $title . $biblionumber } = $biblionumber;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
if ( $ordering eq 'title_az' ) { # sort by title desc
foreach my $key ( sort ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] = $result{$key};
}
}
else { # sort by title ASC
foreach my $key ( sort { $b cmp $a } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] = $result{$key};
}
}
# limit the $results_per_page to result size if it's more
$results_per_page = $numbers - 1 if $numbers < $results_per_page;
# for the requested page, replace biblionumber by the complete record
# speed improvement : avoid reading too much things
for (
my $counter = $offset ;
$counter <= $offset + $results_per_page ;
$counter++
)
{
$result_hash->{'RECORDS'}[$counter] =
GetMarcBiblio( $result_hash->{'RECORDS'}[$counter] )->as_usmarc;
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
}
else {
#
# order by ranking
#
# we need 2 hashes to order by ranking : the 1st one to count the ranking, the 2nd to order by ranking
my %result;
my %count_ranking;
foreach ( split /;/, $biblionumbers ) {
my ( $biblionumber, $title ) = split /,/, $_;
$title =~ /(.*)-(\d)/;
# get weight
my $ranking = $2;
# note that we + the ranking because ranking is calculated on weight of EACH term requested.
# if we ask for "two towers", and "two" has weight 2 in biblio N, and "towers" has weight 4 in biblio N
# biblio N has ranking = 6
$count_ranking{$biblionumber} += $ranking;
}
# build the result by "inverting" the count_ranking hash
# hing : as usual, we don't order by ranking only, to avoid having only 1 result for each rank. We build an hash on concat(ranking,biblionumber) instead
# warn "counting";
foreach ( keys %count_ranking ) {
$result{ sprintf( "%10d", $count_ranking{$_} ) . '-' . $_ } = $_;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers = 0;
foreach my $key ( sort { $b cmp $a } ( keys %result ) ) {
$result_hash->{'RECORDS'}[ $numbers++ ] = $result{$key};
}
# limit the $results_per_page to result size if it's more
$results_per_page = $numbers - 1 if $numbers < $results_per_page;
# for the requested page, replace biblionumber by the complete record
# speed improvement : avoid reading too much things
for (
my $counter = $offset ;
$counter <= $offset + $results_per_page ;
$counter++
)
{
$result_hash->{'RECORDS'}[$counter] =
GetMarcBiblio( $result_hash->{'RECORDS'}[$counter] )->as_usmarc
if $result_hash->{'RECORDS'}[$counter];
}
my $finalresult = ();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
}
}
=head2 enabled_staff_search_views
%hash = enabled_staff_search_views()
This function returns a hash that contains three flags obtained from the system
preferences, used to determine whether a particular staff search results view
is enabled.
=over 2
=item C<Output arg:>
* $hash{can_view_MARC} is true only if the MARC view is enabled
* $hash{can_view_ISBD} is true only if the ISBD view is enabled
* $hash{can_view_labeledMARC} is true only if the Labeled MARC view is enabled
=item C<usage in the script:>
=back
$template->param ( C4::Search::enabled_staff_search_views );
=cut
sub enabled_staff_search_views
{
return (
can_view_MARC => C4::Context->preference('viewMARC'), # 1 if the staff search allows the MARC view
can_view_ISBD => C4::Context->preference('viewISBD'), # 1 if the staff search allows the ISBD view
can_view_labeledMARC => C4::Context->preference('viewLabeledMARC'), # 1 if the staff search allows the Labeled MARC view
);
}
=head2 z3950_search_args
$arrayref = z3950_search_args($matchpoints)
This function returns an array reference that contains the search parameters to be
passed to the Z39.50 search script (z3950_search.pl). The array elements
are hash refs whose keys are name, value and encvalue, and whose values are the
name of a search parameter, the value of that search parameter and the URL encoded
value of that parameter.
The search parameter names are lccn, isbn, issn, title, author, dewey and subject.
The search parameter values are obtained from the bibliographic record whose
data is in a hash reference in $matchpoints, as returned by Biblio::GetBiblioData().
If $matchpoints is a scalar, it is assumed to be an unnamed query descriptor, e.g.
a general purpose search argument. In this case, the returned array contains only
entry: the key is 'title' and the value and encvalue are derived from $matchpoints.
If a search parameter value is undefined or empty, it is not included in the returned
array.
The returned array reference may be passed directly to the template parameters.
=over 2
=item C<Output arg:>
* $array containing hash refs as described above
=item C<usage in the script:>
=back
$data = Biblio::GetBiblioData($bibno);
$template->param ( MYLOOP => C4::Search::z3950_search_args($data) )
*OR*
$template->param ( MYLOOP => C4::Search::z3950_search_args($searchscalar) )
=cut
sub z3950_search_args {
my $bibrec = shift;
$bibrec = { title => $bibrec } if !ref $bibrec;
my $array = [];
for my $field (qw/ lccn isbn issn title author dewey subject /)
{
my $encvalue = URI::Escape::uri_escape_utf8($bibrec->{$field});
push @$array, { name=>$field, value=>$bibrec->{$field}, encvalue=>$encvalue } if defined $bibrec->{$field};
}
return $array;
}
END { } # module clean-up code here (global destructor)
1;
__END__
=head1 AUTHOR
Koha Developement team <info@koha.org>
=cut
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